Week 20 Satellites and Probes
... nearly canceled by Congress and NASA multiple times over its development due to managerial snafus causing extreme budget overruns, but it is now fairly well entrenched in NASA’s budget. JWST will orbit at one of the Lagrangian Points13 between the Earth and the Sun with its massive Sun shield orient ...
... nearly canceled by Congress and NASA multiple times over its development due to managerial snafus causing extreme budget overruns, but it is now fairly well entrenched in NASA’s budget. JWST will orbit at one of the Lagrangian Points13 between the Earth and the Sun with its massive Sun shield orient ...
A Synopsis of the Paper, “Optical Performance of the James Webb
... University of Arizona Optical Sciences 521 Opto-mechanical Engineering ...
... University of Arizona Optical Sciences 521 Opto-mechanical Engineering ...
YOUR NAME 1 Astronomy 18, UCSC Planets and Planetary
... c) equal to the speed of the wave divided by the wavelength of the wave d) all of the above 9) When white light passes through a cool cloud of gas, we see a) thermal radiation b) an absorption line spectrum c) an emission line spectrum 10) What do we mean by the diffraction limit of a telescope? a) ...
... c) equal to the speed of the wave divided by the wavelength of the wave d) all of the above 9) When white light passes through a cool cloud of gas, we see a) thermal radiation b) an absorption line spectrum c) an emission line spectrum 10) What do we mean by the diffraction limit of a telescope? a) ...
Making a reflector telescope
... reflector telescope. It was invented by Isaac Newton around 1670. The main difference is that it uses curved mirrors instead of lenses to collect the light. Here you can make a smaller version of the reflector telescope. Why is the reflector telescope the one most astronomers prefer to use? The univ ...
... reflector telescope. It was invented by Isaac Newton around 1670. The main difference is that it uses curved mirrors instead of lenses to collect the light. Here you can make a smaller version of the reflector telescope. Why is the reflector telescope the one most astronomers prefer to use? The univ ...
Lecture 12
... Advantages of Reflectors •Reflectors are generally better than refractors because –It’s difficult to fabricate very large lenses –Mirrors only need to be polished on one side –Lenses can only be supported on the (thin) edge –Mirrors can be supported along the entire back –Mirrors have no problem wi ...
... Advantages of Reflectors •Reflectors are generally better than refractors because –It’s difficult to fabricate very large lenses –Mirrors only need to be polished on one side –Lenses can only be supported on the (thin) edge –Mirrors can be supported along the entire back –Mirrors have no problem wi ...
January
... You should be challenging me with “Then why do all the navigation maps show a flat earth with dragons to devour ships at the Four Corners?” The simple fact is that it was impossible to sail more than a few days’ distance from a shoreline. Mostly because the open ocean, with 40 or 80 foot waves would ...
... You should be challenging me with “Then why do all the navigation maps show a flat earth with dragons to devour ships at the Four Corners?” The simple fact is that it was impossible to sail more than a few days’ distance from a shoreline. Mostly because the open ocean, with 40 or 80 foot waves would ...
Temperature, df/f
... •Spitzer measurements of thermal emission from exoplanets will have carried over to JWST, which will have measured thermal emission spectra of hot Jupiters and hot Neptunes. JWST will be pushing toward measuring the thermal spectrum of a close-in Earth-like planet around a lower main sequence star, ...
... •Spitzer measurements of thermal emission from exoplanets will have carried over to JWST, which will have measured thermal emission spectra of hot Jupiters and hot Neptunes. JWST will be pushing toward measuring the thermal spectrum of a close-in Earth-like planet around a lower main sequence star, ...
Commonly Misused Verbs
... • Avoid confusing the following verb pairs: sit/set, lie/lay, can/may, teach/learn, rise/raise, and let/leave. • Some verb pairs are easy to confuse. These verbs are similar, but are not quite the same. Knowing the exact meanings of these verbs can help you use them correctly. ...
... • Avoid confusing the following verb pairs: sit/set, lie/lay, can/may, teach/learn, rise/raise, and let/leave. • Some verb pairs are easy to confuse. These verbs are similar, but are not quite the same. Knowing the exact meanings of these verbs can help you use them correctly. ...
TELESCOPES - GeoEcoGeo.com
... 1. Use a metal dish to collect radio waves, rather than lenses or mirrors 2. Used to search for extraterrestrial life and to study radio waves that are emitted by stars and other objects 3. The Very Large Array (VLA) radio telescopes in New Mexico consists of 27 separate radio telescopes that can be ...
... 1. Use a metal dish to collect radio waves, rather than lenses or mirrors 2. Used to search for extraterrestrial life and to study radio waves that are emitted by stars and other objects 3. The Very Large Array (VLA) radio telescopes in New Mexico consists of 27 separate radio telescopes that can be ...
Jeff Christopher
... If the weather was good all night then I would have a long night of observing. We started off thinking that if we timed it right we could observe maybe two stars a night, but we soon found that their variations we not completely set in stone, so it was better to stick with one variable star and ima ...
... If the weather was good all night then I would have a long night of observing. We started off thinking that if we timed it right we could observe maybe two stars a night, but we soon found that their variations we not completely set in stone, so it was better to stick with one variable star and ima ...
Astronomy Today, Chapter 3 Radiation 3
... b. Motion starts a disturbance in the particles electrical field 10. How does the strength of an electrical field and its disturbances vary with distance? a. By the inverse square law b. Just like gravitational fields Electromagnetic Waves 11. How fast do electromagnetic waves travel? a. 3.00 x 105 ...
... b. Motion starts a disturbance in the particles electrical field 10. How does the strength of an electrical field and its disturbances vary with distance? a. By the inverse square law b. Just like gravitational fields Electromagnetic Waves 11. How fast do electromagnetic waves travel? a. 3.00 x 105 ...
Fast Facts - Canada France Hawaii Telescope
... opening information on the physics of stars that was previously only available for our closest star, the Sun. ...
... opening information on the physics of stars that was previously only available for our closest star, the Sun. ...
Space Exploration Review Key
... earth because moon rotates in some time it takes to go around the earth 6. List three pieces of information for each of the nine planets in our solar system. Mercury made up of silicate rock daytime high 430 degrees C, night time low -180 degrees C very thin atmosphere ...
... earth because moon rotates in some time it takes to go around the earth 6. List three pieces of information for each of the nine planets in our solar system. Mercury made up of silicate rock daytime high 430 degrees C, night time low -180 degrees C very thin atmosphere ...
Document
... The main function of a telescope is to gather faint light from an astronomical source and to focus that light into an image The light gathering ability of a telescope is defined by its diameter or aperture Before the 20th century, astronomer looked through the telescope with their eyes Today the ima ...
... The main function of a telescope is to gather faint light from an astronomical source and to focus that light into an image The light gathering ability of a telescope is defined by its diameter or aperture Before the 20th century, astronomer looked through the telescope with their eyes Today the ima ...
E-ELT - Science and Technology Facilities Council
... of the Universe, without the need to make assumptions such as a standard luminosity for distant supernovae These measurements, made possible by a suite of advanced instruments, will have a major impact on our understanding of the Universe. The biggest eye on the sky The biggest eye on the sky will h ...
... of the Universe, without the need to make assumptions such as a standard luminosity for distant supernovae These measurements, made possible by a suite of advanced instruments, will have a major impact on our understanding of the Universe. The biggest eye on the sky The biggest eye on the sky will h ...
How to Use This Presentation
... electromagnetic radiation is that Earth’s atmosphere acts as a shield against many forms of electromagnetic radiation. • Ground-based telescopes work best at high elevations, where the air is thin and dry. ...
... electromagnetic radiation is that Earth’s atmosphere acts as a shield against many forms of electromagnetic radiation. • Ground-based telescopes work best at high elevations, where the air is thin and dry. ...
Astronomical Instruments
... Or avoid the atmosphere altogether. Go to space! Hubble space telescope (2.5m primary) is in operation since 1990. Its successor James Webb space telescope is under construction ...
... Or avoid the atmosphere altogether. Go to space! Hubble space telescope (2.5m primary) is in operation since 1990. Its successor James Webb space telescope is under construction ...
NEO lecture 02 - Observations of NEOs
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
Orion capsules will take astronauts out of low
... by mounting each astronaut’s seat to a pallet below using seven struts to absorb energy in different directions. Data retrieved during Orion’s Exploration Flight Test-1 on Dec. 5 proved that NASA could simplify the design and reduce weight by replacing the struts with metal that slides a few inches ...
... by mounting each astronaut’s seat to a pallet below using seven struts to absorb energy in different directions. Data retrieved during Orion’s Exploration Flight Test-1 on Dec. 5 proved that NASA could simplify the design and reduce weight by replacing the struts with metal that slides a few inches ...
Jodrell Bank Discovery Centre
... 9. Describe what you see when you touch the sphere. _______________________________________ ...
... 9. Describe what you see when you touch the sphere. _______________________________________ ...
COMING EVENTS The Pluto Files Volume 37 Number 03 March
... these pictures are sketches by Phil Harrington. Photos are credited on page xi. For the Horsehead Nebula, the picture shows a field with 10 stars, but the Horsehead is so dim in the image I had to look very carefully at the image before I could actually see the location of the Horsehead. The idea is ...
... these pictures are sketches by Phil Harrington. Photos are credited on page xi. For the Horsehead Nebula, the picture shows a field with 10 stars, but the Horsehead is so dim in the image I had to look very carefully at the image before I could actually see the location of the Horsehead. The idea is ...
CAREERS IN ASTRONOMY: GRADUATE SCHOOL AND TEACHING
... Manpower development: the conversion will enable the observatories train personnel in a number of fields such as electronics and electrical engineering, mechanical engineering, image processing and computer science etc. generally speaking, economic wealth creation is made through the development of ...
... Manpower development: the conversion will enable the observatories train personnel in a number of fields such as electronics and electrical engineering, mechanical engineering, image processing and computer science etc. generally speaking, economic wealth creation is made through the development of ...
James Webb Space Telescope
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.The JWST has a history of major cost overruns and delays. The first realistic budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2018 launch. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 percent of its hardware was in production. Funding was restored in compromise legislation with the US Senate, and spending on the program was capped at $8 billion. As of December 2014, the telescope remained on schedule and within budget, but at risk of further delays.